TPS2224 - 具有串行接口且采用 24 引脚封装的 1A 双槽位 PC 卡电源开关

TPS2224是TI德州仪器公司的一款PCMCIA/Cardbus开关矩阵产品，TPS2224是具有串行接口且采用 24 引脚封装的 1A 双槽位 PC 卡电源开关，本站介绍了TPS2224的封装应用图解、特点和优点、功能等，并给出了与TPS2224相关的TI元器件型号供参考。

TPS2224 - 具有串行接口且采用 24 引脚封装的 1A 双槽位 PC 卡电源开关 - PCMCIA/Cardbus开关矩阵 - 保护、监控和热插拔 - 德州仪器

产品描述

The TPS2223, TPS2224 and TPS2226 Card-Bus™ power-interface switches provide an integrated power-management solution for two PC Card sockets. These devices allow the controlled distribution of 3.3 V, 5 V, and 12 V to each card slot. The current-limiting and thermal-protection features eliminate the need for fuses. Current-limit reporting helps the user isolate a system fault. The switch rDS(on) and current-limit values have been set for the peak and average current requirements stated in the PC Card specification, and optimized for cost.

Like the TPS2214 and TPS2214A and the TPS2216 and TPS2216A, this family of devices supports independent VPP/VCC switching; however, the standby and interface-mode pins are not supported. Shutdown mode is now supported independently on SHDN as well as in the serial interface. Optimized for lower power implementation, the TPS2223 does not support 12-V switching to VPP. See the available options table for pin-compatible device information

产品特性

Fully Integrated VCC and Vpp Switching for 3.3 V, 5 V, and 12 V (no 12 V on TPS2223)
Meets Current PC Card™ Standards
Vpp Output Selection Independent of VCC
12-V and 5-V Supplies Can Be Disabled
TTL-Logic Compatible Inputs
Short-Circuit and Thermal Protection
24-Pin HTSSOP, 24- or 30-Pin SSOP
140-µA (Typical) Quiescent Current from 3.3-V Input
Break-Before-Make Switching
Power-On Reset
–40°C to 85°C Operating Ambient Temperature Range
applications
- Notebook and Desktop Computers
- Bar Code Scanners
- Digital Cameras
- Set-Top Boxes
- PDAs

PowerPAD is a trademark of Texas Instruments. CardBus and PC Card are trademarks of PCMCIA (Personal Computer Memory Card International Association).

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